Instrument strap



FIG. 1 is an isometric view of the instrument strap in a folded condition, drawn in an enlarged view for ease of illustration;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a back view thereof.

The broken lines found on the instrument strap in FIGS. 1-3 represent unclaimed stitching and form no part of the claimed design. 

CLAIM The ornamental design for an instrument strap, as shown and described. 